945553151 has 4 divisors (see below), whose sum is σ = 953920992. Its totient is φ = 937185312.

The previous prime is 945553123. The next prime is 945553157. The reversal of 945553151 is 151355549.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 151355549 = 1291 ⋅117239.

It is a cyclic number.

It is not a de Polignac number, because 945553151 - 2⁶ = 945553087 is a prime.

It is a super-2 number, since 2×945553151² = 1788141522732057602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (945553157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4183751 + ... + 4183976.

It is an arithmetic number, because the mean of its divisors is an integer number (238480248).

Almost surely, 2^945553151 is an apocalyptic number.

945553151 is a deficient number, since it is larger than the sum of its proper divisors (8367841).

945553151 is a wasteful number, since it uses less digits than its factorization.

945553151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8367840.

The product of its digits is 67500, while the sum is 38.

The square root of 945553151 is about 30749.8479833641. The cubic root of 945553151 is about 981.5113259323.

The spelling of 945553151 in words is "nine hundred forty-five million, five hundred fifty-three thousand, one hundred fifty-one".