73151490 has 16 divisors (see below), whose sum is σ = 175563648. Its totient is φ = 19507056.

The previous prime is 73151489. The next prime is 73151549. The reversal of 73151490 is 9415137.

It is a super-2 number, since 2×73151490² = 10702280978440200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 2438383 = 73151490 / (7 + 3 + 1 + 5 + 1 + 4 + 9 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1219162 + ... + 1219221.

It is an arithmetic number, because the mean of its divisors is an integer number (10972728).

Almost surely, 2^73151490 is an apocalyptic number.

73151490 is an abundant number, since it is smaller than the sum of its proper divisors (102412158).

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

73151490 is a wasteful number, since it uses less digits than its factorization.

73151490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2438393.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 73151490 is about 8552.8644324577. The cubic root of 73151490 is about 418.2228194747. Note that the first 3 decimals are identical.

The spelling of 73151490 in words is "seventy-three million, one hundred fifty-one thousand, four hundred ninety".