1305452142 has 24 divisors (see below), whose sum is σ = 2834259480. Its totient is φ = 434261520.

The previous prime is 1305452131. The next prime is 1305452143. The reversal of 1305452142 is 2412545031.

1305452142 is a `hidden beast` number, since 130 + 5 + 4 + 521 + 4 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1305452143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65017 + ... + 82692.

It is an arithmetic number, because the mean of its divisors is an integer number (118094145).

Almost surely, 2^1305452142 is an apocalyptic number.

1305452142 is an abundant number, since it is smaller than the sum of its proper divisors (1528807338).

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

1305452142 is a wasteful number, since it uses less digits than its factorization.

1305452142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148208 (or 148205 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1305452142 is about 36131.0412526404. The cubic root of 1305452142 is about 1092.9165060594.

Adding to 1305452142 its reverse (2412545031), we get a palindrome (3717997173).

The spelling of 1305452142 in words is "one billion, three hundred five million, four hundred fifty-two thousand, one hundred forty-two".