72413451 has 24 divisors (see below), whose sum is σ = 115133616. Its totient is φ = 43491840.

The previous prime is 72413447. The next prime is 72413459. The reversal of 72413451 is 15431427.

It is not a de Polignac number, because 72413451 - 2² = 72413447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72413459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7951 + ... + 14423.

It is an arithmetic number, because the mean of its divisors is an integer number (4797234).

Almost surely, 2^72413451 is an apocalyptic number.

72413451 is a deficient number, since it is larger than the sum of its proper divisors (42720165).

72413451 is a wasteful number, since it uses less digits than its factorization.

72413451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6603 (or 6600 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 72413451 is about 8509.6093329835. The cubic root of 72413451 is about 416.8115533108.

Adding to 72413451 its reverse (15431427), we get a palindrome (87844878).

The spelling of 72413451 in words is "seventy-two million, four hundred thirteen thousand, four hundred fifty-one".