157642045 has 16 divisors (see below), whose sum is σ = 207309312. Its totient is φ = 114125760.

The previous prime is 157642039. The next prime is 157642049. The reversal of 157642045 is 540246751.

It is not a de Polignac number, because 157642045 - 2¹⁷ = 157510973 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 157642045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157642049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5839 + ... + 18691.

It is an arithmetic number, because the mean of its divisors is an integer number (12956832).

Almost surely, 2^157642045 is an apocalyptic number.

It is an amenable number.

157642045 is a deficient number, since it is larger than the sum of its proper divisors (49667267).

157642045 is a wasteful number, since it uses less digits than its factorization.

157642045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13092.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 157642045 is about 12555.5583308748. The cubic root of 157642045 is about 540.2034498592.

Adding to 157642045 its reverse (540246751), we get a palindrome (697888796).

The spelling of 157642045 in words is "one hundred fifty-seven million, six hundred forty-two thousand, forty-five".