945165554 has 4 divisors (see below), whose sum is σ = 1417748334. Its totient is φ = 472582776.

The previous prime is 945165547. The next prime is 945165581. The reversal of 945165554 is 455561549.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 455561549 = 191 ⋅2385139.

It can be written as a sum of positive squares in only one way, i.e., 942183025 + 2982529 = 30695^2 + 1727^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236291387 + ... + 236291390.

Almost surely, 2^945165554 is an apocalyptic number.

945165554 is a deficient number, since it is larger than the sum of its proper divisors (472582780).

945165554 is a wasteful number, since it uses less digits than its factorization.

945165554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472582779.

The product of its digits is 540000, while the sum is 44.

The square root of 945165554 is about 30743.5449159657. The cubic root of 945165554 is about 981.3771953308.

The spelling of 945165554 in words is "nine hundred forty-five million, one hundred sixty-five thousand, five hundred fifty-four".