158461642 has 8 divisors (see below), whose sum is σ = 238079556. Its totient is φ = 79101792.

The previous prime is 158461637. The next prime is 158461673. The reversal of 158461642 is 246164851.

It can be written as a sum of positive squares in 2 ways, for example, as 151068681 + 7392961 = 12291^2 + 2719^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×158461642² = 50220183970672328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62973 + ... + 65440.

Almost surely, 2^158461642 is an apocalyptic number.

158461642 is a deficient number, since it is larger than the sum of its proper divisors (79617914).

158461642 is a wasteful number, since it uses less digits than its factorization.

158461642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129032.

The product of its digits is 46080, while the sum is 37.

The square root of 158461642 is about 12588.1548290446. The cubic root of 158461642 is about 541.1380229427.

The spelling of 158461642 in words is "one hundred fifty-eight million, four hundred sixty-one thousand, six hundred forty-two".