1372722437 has 2 divisors, whose sum is σ = 1372722438. Its totient is φ = 1372722436.

The previous prime is 1372722401. The next prime is 1372722479. The reversal of 1372722437 is 7342272731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 698333476 + 674388961 = 26426^2 + 25969^2 .

It is a cyclic number.

It is not a de Polignac number, because 1372722437 - 2²⁰ = 1371673861 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1372722437.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1372722037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686361218 + 686361219.

It is an arithmetic number, because the mean of its divisors is an integer number (686361219).

Almost surely, 2^1372722437 is an apocalyptic number.

It is an amenable number.

1372722437 is a deficient number, since it is larger than the sum of its proper divisors (1).

1372722437 is an equidigital number, since it uses as much as digits as its factorization.

1372722437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 98784, while the sum is 38.

The square root of 1372722437 is about 37050.2690543537. The cubic root of 1372722437 is about 1111.3757357022.

The spelling of 1372722437 in words is "one billion, three hundred seventy-two million, seven hundred twenty-two thousand, four hundred thirty-seven".