158742590 has 16 divisors (see below), whose sum is σ = 285901920. Its totient is φ = 63460320.

The previous prime is 158742569. The next prime is 158742613. The reversal of 158742590 is 95247851.

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, 19676 + ... + 26544.

It is an arithmetic number, because the mean of its divisors is an integer number (17868870).

Almost surely, 2^158742590 is an apocalyptic number.

158742590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

158742590 is a deficient number, since it is larger than the sum of its proper divisors (127159330).

158742590 is a wasteful number, since it uses less digits than its factorization.

158742590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9187.

The product of its (nonzero) digits is 100800, while the sum is 41.

The square root of 158742590 is about 12599.3091080424. The cubic root of 158742590 is about 541.4576415845.

The spelling of 158742590 in words is "one hundred fifty-eight million, seven hundred forty-two thousand, five hundred ninety".