157145229 has 48 divisors (see below), whose sum is σ = 251709120. Its totient is φ = 94026240.

The previous prime is 157145221. The next prime is 157145237. The reversal of 157145229 is 922541751.

It is an interprime number because it is at equal distance from previous prime (157145221) and next prime (157145237).

It is not a de Polignac number, because 157145229 - 2³ = 157145221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 157145193 and 157145202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157145221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 474594 + ... + 474924.

It is an arithmetic number, because the mean of its divisors is an integer number (5243940).

Almost surely, 2^157145229 is an apocalyptic number.

It is an amenable number.

157145229 is a deficient number, since it is larger than the sum of its proper divisors (94563891).

157145229 is a wasteful number, since it uses less digits than its factorization.

157145229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490 (or 487 counting only the distinct ones).

The product of its digits is 25200, while the sum is 36.

The square root of 157145229 is about 12535.7580145757. The cubic root of 157145229 is about 539.6353608259.

The spelling of 157145229 in words is "one hundred fifty-seven million, one hundred forty-five thousand, two hundred twenty-nine".