1954131006 has 16 divisors (see below), whose sum is σ = 3912315264. Its totient is φ = 650701464.

The previous prime is 1954130999. The next prime is 1954131013. The reversal of 1954131006 is 6001314591.

It is an interprime number because it is at equal distance from previous prime (1954130999) and next prime (1954131013).

It is a super-2 number, since 2×1954131006² = 7637255977221144072, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162600 + ... + 174203.

It is an arithmetic number, because the mean of its divisors is an integer number (244519704).

Almost surely, 2^1954131006 is an apocalyptic number.

1954131006 is an abundant number, since it is smaller than the sum of its proper divisors (1958184258).

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

1954131006 is a wasteful number, since it uses less digits than its factorization.

1954131006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337775.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 1954131006 is about 44205.5540175666. The cubic root of 1954131006 is about 1250.2145777763.

Adding to 1954131006 its reverse (6001314591), we get a palindrome (7955445597).

The spelling of 1954131006 in words is "one billion, nine hundred fifty-four million, one hundred thirty-one thousand, six".