72126154 has 8 divisors (see below), whose sum is σ = 108378468. Its totient is φ = 36000000.

The previous prime is 72126151. The next prime is 72126167. The reversal of 72126154 is 45162127.

It can be written as a sum of positive squares in 2 ways, for example, as 39350529 + 32775625 = 6273^2 + 5725^2 .

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

It is not an unprimeable number, because it can be changed into a prime (72126151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30097 + ... + 32404.

Almost surely, 2^72126154 is an apocalyptic number.

72126154 is a deficient number, since it is larger than the sum of its proper divisors (36252314).

72126154 is a wasteful number, since it uses less digits than its factorization.

72126154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63080.

The product of its digits is 3360, while the sum is 28.

The square root of 72126154 is about 8492.7118166108. The cubic root of 72126154 is about 416.2595958914.

It can be divided in two parts, 7212 and 6154, that added together give a triangular number (13366 = T₁₆₃).

The spelling of 72126154 in words is "seventy-two million, one hundred twenty-six thousand, one hundred fifty-four".