73746157 has 2 divisors, whose sum is σ = 73746158. Its totient is φ = 73746156.

The previous prime is 73746151. The next prime is 73746191. The reversal of 73746157 is 75164737.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54552996 + 19193161 = 7386^2 + 4381^2 .

It is an emirp because it is prime and its reverse (75164737) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73746157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73746151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36873078 + 36873079.

It is an arithmetic number, because the mean of its divisors is an integer number (36873079).

Almost surely, 2^73746157 is an apocalyptic number.

It is an amenable number.

73746157 is a deficient number, since it is larger than the sum of its proper divisors (1).

73746157 is an equidigital number, since it uses as much as digits as its factorization.

73746157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 123480, while the sum is 40.

The square root of 73746157 is about 8587.5582676335. The cubic root of 73746157 is about 419.3530421242.

It can be divided in two parts, 7374 and 6157, that added together give a palindrome (13531).

The spelling of 73746157 in words is "seventy-three million, seven hundred forty-six thousand, one hundred fifty-seven".