149252693 has 4 divisors (see below), whose sum is σ = 154067328. Its totient is φ = 144438060.

The previous prime is 149252659. The next prime is 149252737. The reversal of 149252693 is 396252941.

149252693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 149252693 - 2¹⁸ = 148990549 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 149252693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149252603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2407271 + ... + 2407332.

It is an arithmetic number, because the mean of its divisors is an integer number (38516832).

Almost surely, 2^149252693 is an apocalyptic number.

It is an amenable number.

149252693 is a deficient number, since it is larger than the sum of its proper divisors (4814635).

149252693 is an equidigital number, since it uses as much as digits as its factorization.

149252693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4814634.

The product of its digits is 116640, while the sum is 41.

The square root of 149252693 is about 12216.9019395262. The cubic root of 149252693 is about 530.4454460903.

The spelling of 149252693 in words is "one hundred forty-nine million, two hundred fifty-two thousand, six hundred ninety-three".