157195390 has 32 divisors (see below), whose sum is σ = 311752800. Its totient is φ = 56592000.

The previous prime is 157195373. The next prime is 157195391. The reversal of 157195390 is 93591751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157195391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4036 + ... + 18184.

It is an arithmetic number, because the mean of its divisors is an integer number (9742275).

Almost surely, 2^157195390 is an apocalyptic number.

157195390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157195390 is a deficient number, since it is larger than the sum of its proper divisors (154557410).

157195390 is a wasteful number, since it uses less digits than its factorization.

157195390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14268.

The product of its (nonzero) digits is 42525, while the sum is 40.

The square root of 157195390 is about 12537.7585716108. The cubic root of 157195390 is about 539.6927721982.

The spelling of 157195390 in words is "one hundred fifty-seven million, one hundred ninety-five thousand, three hundred ninety".