151603402 has 4 divisors (see below), whose sum is σ = 227405106. Its totient is φ = 75801700.

The previous prime is 151603367. The next prime is 151603409. The reversal of 151603402 is 204306151.

151603402 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 95667961 + 55935441 = 9781^2 + 7479^2 .

It is not an unprimeable number, because it can be changed into a prime (151603409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37900849 + ... + 37900852.

Almost surely, 2^151603402 is an apocalyptic number.

151603402 is a deficient number, since it is larger than the sum of its proper divisors (75801704).

151603402 is an equidigital number, since it uses as much as digits as its factorization.

151603402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75801703.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 151603402 is about 12312.7333277384. The cubic root of 151603402 is about 533.2157663600.

Adding to 151603402 its reverse (204306151), we get a palindrome (355909553).

The spelling of 151603402 in words is "one hundred fifty-one million, six hundred three thousand, four hundred two".