157402045 has 8 divisors (see below), whose sum is σ = 188953560. Its totient is φ = 125874240.

The previous prime is 157402019. The next prime is 157402057. The reversal of 157402045 is 540204751.

It can be written as a sum of positive squares in 4 ways, for example, as 3790809 + 153611236 = 1947^2 + 12394^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 157402045 - 2¹¹ = 157399997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16191 + ... + 24019.

It is an arithmetic number, because the mean of its divisors is an integer number (23619195).

Almost surely, 2^157402045 is an apocalyptic number.

It is an amenable number.

157402045 is a deficient number, since it is larger than the sum of its proper divisors (31551515).

157402045 is an equidigital number, since it uses as much as digits as its factorization.

157402045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11855.

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 157402045 is about 12545.9971704126. The cubic root of 157402045 is about 539.9291688074.

Adding to 157402045 its reverse (540204751), we get a palindrome (697606796).

The spelling of 157402045 in words is "one hundred fifty-seven million, four hundred two thousand, forty-five".