157223045 has 8 divisors (see below), whose sum is σ = 215620224. Its totient is φ = 107810064.

The previous prime is 157223029. The next prime is 157223051. The reversal of 157223045 is 540322751.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 157223045 - 2⁴ = 157223029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 157222999 and 157223017.

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, 2246009 + ... + 2246078.

It is an arithmetic number, because the mean of its divisors is an integer number (26952528).

Almost surely, 2^157223045 is an apocalyptic number.

It is an amenable number.

157223045 is a deficient number, since it is larger than the sum of its proper divisors (58397179).

157223045 is an equidigital number, since it uses as much as digits as its factorization.

157223045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4492099.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 157223045 is about 12538.8613916894. The cubic root of 157223045 is about 539.7244192849.

Adding to 157223045 its reverse (540322751), we get a palindrome (697545796).

The spelling of 157223045 in words is "one hundred fifty-seven million, two hundred twenty-three thousand, forty-five".