158610740 has 12 divisors (see below), whose sum is σ = 333082596. Its totient is φ = 63444288.

The previous prime is 158610719. The next prime is 158610743. The reversal of 158610740 is 47016851.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 114361636 + 44249104 = 10694^2 + 6652^2 .

It is a junction number, because it is equal to n+sod(n) for n = 158610697 and 158610706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158610743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3965249 + ... + 3965288.

It is an arithmetic number, because the mean of its divisors is an integer number (27756883).

Almost surely, 2^158610740 is an apocalyptic number.

158610740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158610740 is an abundant number, since it is smaller than the sum of its proper divisors (174471856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

158610740 is a wasteful number, since it uses less digits than its factorization.

158610740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7930546 (or 7930544 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 158610740 is about 12594.0755913247. The cubic root of 158610740 is about 541.3076903023.

The spelling of 158610740 in words is "one hundred fifty-eight million, six hundred ten thousand, seven hundred forty".