145654049 has 4 divisors (see below), whose sum is σ = 145689264. Its totient is φ = 145618836.

The previous prime is 145654043. The next prime is 145654073. The reversal of 145654049 is 940456541.

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: 940456541 = 17 ⋅55320973.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145654049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145654043) 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, 10427 + ... + 20000.

It is an arithmetic number, because the mean of its divisors is an integer number (36422316).

Almost surely, 2^145654049 is an apocalyptic number.

It is an amenable number.

145654049 is a deficient number, since it is larger than the sum of its proper divisors (35215).

145654049 is an equidigital number, since it uses as much as digits as its factorization.

145654049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35214.

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 145654049 is about 12068.7219290197. The cubic root of 145654049 is about 526.1475114816.

The spelling of 145654049 in words is "one hundred forty-five million, six hundred fifty-four thousand, forty-nine".