151603601 has 4 divisors (see below), whose sum is σ = 151628400. Its totient is φ = 151578804.

The previous prime is 151603591. The next prime is 151603643. The reversal of 151603601 is 106306151.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 151603601 - 2¹⁴ = 151587217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151603301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4010 + ... + 17868.

It is an arithmetic number, because the mean of its divisors is an integer number (37907100).

Almost surely, 2^151603601 is an apocalyptic number.

It is an amenable number.

151603601 is a deficient number, since it is larger than the sum of its proper divisors (24799).

151603601 is a wasteful number, since it uses less digits than its factorization.

151603601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24798.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 151603601 is about 12312.7414088009. The cubic root of 151603601 is about 533.2159996658.

Adding to 151603601 its reverse (106306151), we get a palindrome (257909752).

The spelling of 151603601 in words is "one hundred fifty-one million, six hundred three thousand, six hundred one".