153449745 has 16 divisors (see below), whose sum is σ = 247289280. Its totient is φ = 81249984.

The previous prime is 153449741. The next prime is 153449749. The reversal of 153449745 is 547944351.

It is an interprime number because it is at equal distance from previous prime (153449741) and next prime (153449749).

It is not a de Polignac number, because 153449745 - 2² = 153449741 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 153449697 and 153449706.

It is not an unprimeable number, because it can be changed into a prime (153449741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34714 + ... + 38883.

It is an arithmetic number, because the mean of its divisors is an integer number (15455580).

Almost surely, 2^153449745 is an apocalyptic number.

153449745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

153449745 is a deficient number, since it is larger than the sum of its proper divisors (93839535).

153449745 is a wasteful number, since it uses less digits than its factorization.

153449745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73744.

The product of its digits is 302400, while the sum is 42.

The square root of 153449745 is about 12387.4834005943. The cubic root of 153449745 is about 535.3716752322.

The spelling of 153449745 in words is "one hundred fifty-three million, four hundred forty-nine thousand, seven hundred forty-five".