1005045154 has 4 divisors (see below), whose sum is σ = 1507567734. Its totient is φ = 502522576.

The previous prime is 1005045137. The next prime is 1005045169. The reversal of 1005045154 is 4515405001.

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: 4515405001 = 37 ⋅122037973.

It can be written as a sum of positive squares in only one way, i.e., 783720025 + 221325129 = 27995^2 + 14877^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251261287 + ... + 251261290.

Almost surely, 2^1005045154 is an apocalyptic number.

1005045154 is a deficient number, since it is larger than the sum of its proper divisors (502522580).

1005045154 is an equidigital number, since it uses as much as digits as its factorization.

1005045154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502522579.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 1005045154 is about 31702.4471295198. The cubic root of 1005045154 is about 1001.6788977250.

The spelling of 1005045154 in words is "one billion, five million, forty-five thousand, one hundred fifty-four".