149252453 has 4 divisors (see below), whose sum is σ = 170574240. Its totient is φ = 127930668.

The previous prime is 149252443. The next prime is 149252461. The reversal of 149252453 is 354252941.

149252453 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, and also an emirpimes, since its reverse is a distinct semiprime: 354252941 = 7 ⋅50607563.

It is a cyclic number.

It is not a de Polignac number, because 149252453 - 2²⁰ = 148203877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149252443) 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, 10660883 + ... + 10660896.

It is an arithmetic number, because the mean of its divisors is an integer number (42643560).

Almost surely, 2^149252453 is an apocalyptic number.

It is an amenable number.

149252453 is a deficient number, since it is larger than the sum of its proper divisors (21321787).

149252453 is an equidigital number, since it uses as much as digits as its factorization.

149252453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21321786.

The product of its digits is 43200, while the sum is 35.

The square root of 149252453 is about 12216.8921170648. The cubic root of 149252453 is about 530.4451617694.

The spelling of 149252453 in words is "one hundred forty-nine million, two hundred fifty-two thousand, four hundred fifty-three".