149073751 has 2 divisors, whose sum is σ = 149073752. Its totient is φ = 149073750.

The previous prime is 149073713. The next prime is 149073767. The reversal of 149073751 is 157370941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 149073751 - 2⁷ = 149073623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 149073751.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149073251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74536875 + 74536876.

It is an arithmetic number, because the mean of its divisors is an integer number (74536876).

Almost surely, 2^149073751 is an apocalyptic number.

149073751 is a deficient number, since it is larger than the sum of its proper divisors (1).

149073751 is an equidigital number, since it uses as much as digits as its factorization.

149073751 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 149073751 is about 12209.5762006713. The cubic root of 149073751 is about 530.2333741430.

The spelling of 149073751 in words is "one hundred forty-nine million, seventy-three thousand, seven hundred fifty-one".