3145402140 has 48 divisors (see below), whose sum is σ = 8844964128. Its totient is φ = 835170304.

The previous prime is 3145402129. The next prime is 3145402151. The reversal of 3145402140 is 412045413.

It is an interprime number because it is at equal distance from previous prime (3145402129) and next prime (3145402151).

It is a self number, because there is not a number n which added to its sum of digits gives 3145402140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98517 + ... + 126476.

It is an arithmetic number, because the mean of its divisors is an integer number (184270086).

Almost surely, 2^3145402140 is an apocalyptic number.

3145402140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3145402140 is an abundant number, since it is smaller than the sum of its proper divisors (5699561988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3145402140 is a wasteful number, since it uses less digits than its factorization.

3145402140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225238 (or 225236 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 3145402140 is about 56083.8848511763. The cubic root of 3145402140 is about 1465.1836351091.

Adding to 3145402140 its reverse (412045413), we get a palindrome (3557447553).

The spelling of 3145402140 in words is "three billion, one hundred forty-five million, four hundred two thousand, one hundred forty".