149560402 has 4 divisors (see below), whose sum is σ = 224340606. Its totient is φ = 74780200.

The previous prime is 149560393. The next prime is 149560423. The reversal of 149560402 is 204065941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 204065941 = 2017 ⋅101173.

It can be written as a sum of positive squares in only one way, i.e., 136679481 + 12880921 = 11691^2 + 3589^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37390099 + ... + 37390102.

Almost surely, 2^149560402 is an apocalyptic number.

149560402 is a deficient number, since it is larger than the sum of its proper divisors (74780204).

149560402 is an equidigital number, since it uses as much as digits as its factorization.

149560402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74780203.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 149560402 is about 12229.4890326620. The cubic root of 149560402 is about 530.8097294019.

The spelling of 149560402 in words is "one hundred forty-nine million, five hundred sixty thousand, four hundred two".