158400454 has 8 divisors (see below), whose sum is σ = 250106040. Its totient is φ = 75031776.

The previous prime is 158400439. The next prime is 158400457. The reversal of 158400454 is 454004851.

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

It is a super-2 number, since 2×158400454² = 50181407654812232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158400457) 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 3 ways as a sum of consecutive naturals, for example, 2084179 + ... + 2084254.

It is an arithmetic number, because the mean of its divisors is an integer number (31263255).

Almost surely, 2^158400454 is an apocalyptic number.

158400454 is a deficient number, since it is larger than the sum of its proper divisors (91705586).

158400454 is a wasteful number, since it uses less digits than its factorization.

158400454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4168454.

The product of its (nonzero) digits is 12800, while the sum is 31.

The square root of 158400454 is about 12585.7242143629. The cubic root of 158400454 is about 541.0683627279.

The spelling of 158400454 in words is "one hundred fifty-eight million, four hundred thousand, four hundred fifty-four".