151312402 has 4 divisors (see below), whose sum is σ = 226968606. Its totient is φ = 75656200.

The previous prime is 151312387. The next prime is 151312417. The reversal of 151312402 is 204213151.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (151312387) and next prime (151312417).

It can be written as a sum of positive squares in only one way, i.e., 113870241 + 37442161 = 10671^2 + 6119^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 151312402.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37828099 + ... + 37828102.

Almost surely, 2^151312402 is an apocalyptic number.

151312402 is a deficient number, since it is larger than the sum of its proper divisors (75656204).

151312402 is an equidigital number, since it uses as much as digits as its factorization.

151312402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75656203.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 151312402 is about 12300.9106166983. The cubic root of 151312402 is about 532.8743818192.

Adding to 151312402 its reverse (204213151), we get a palindrome (355525553).

The spelling of 151312402 in words is "one hundred fifty-one million, three hundred twelve thousand, four hundred two".