151961402 has 12 divisors (see below), whose sum is σ = 242140110. Its totient is φ = 71510976.

The previous prime is 151961401. The next prime is 151961443. The reversal of 151961402 is 204169151.

It can be written as a sum of positive squares in 3 ways, for example, as 146434201 + 5527201 = 12101^2 + 2351^2 .

It is not an unprimeable number, because it can be changed into a prime (151961401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 130877 + ... + 132032.

Almost surely, 2^151961402 is an apocalyptic number.

151961402 is a deficient number, since it is larger than the sum of its proper divisors (90178708).

151961402 is a wasteful number, since it uses less digits than its factorization.

151961402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262945 (or 262928 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 151961402 is about 12327.2625509478. The cubic root of 151961402 is about 533.6351526891.

The spelling of 151961402 in words is "one hundred fifty-one million, nine hundred sixty-one thousand, four hundred two".