158973011 has 6 divisors (see below), whose sum is σ = 159564636. Its totient is φ = 158383500.

The previous prime is 158973007. The next prime is 158973029. The reversal of 158973011 is 110379851.

It is not a de Polignac number, because 158973011 - 2² = 158973007 is a prime.

It is a super-2 number, since 2×158973011² = 50544836452812242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158973071) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 108836 + ... + 110286.

It is an arithmetic number, because the mean of its divisors is an integer number (26594106).

Almost surely, 2^158973011 is an apocalyptic number.

158973011 is the 6740-th centered heptagonal number.

158973011 is a deficient number, since it is larger than the sum of its proper divisors (591625).

158973011 is an frugal number, since it uses more digits than its factorization.

158973011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2113 (or 1782 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 35.

The square root of 158973011 is about 12608.4499840385. The cubic root of 158973011 is about 541.7194971535.

The spelling of 158973011 in words is "one hundred fifty-eight million, nine hundred seventy-three thousand, eleven".