1125800154 has 32 divisors (see below), whose sum is σ = 2582484480. Its totient is φ = 363160800.

The previous prime is 1125800149. The next prime is 1125800161. The reversal of 1125800154 is 4510085211.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 334587 + ... + 337934.

It is an arithmetic number, because the mean of its divisors is an integer number (80702640).

Almost surely, 2^1125800154 is an apocalyptic number.

1125800154 is an abundant number, since it is smaller than the sum of its proper divisors (1456684326).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1125800154 is a wasteful number, since it uses less digits than its factorization.

1125800154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672563 (or 672557 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

The square root of 1125800154 is about 33552.9455338872. The cubic root of 1125800154 is about 1040.2884290000.

Adding to 1125800154 its reverse (4510085211), we get a palindrome (5635885365).

The spelling of 1125800154 in words is "one billion, one hundred twenty-five million, eight hundred thousand, one hundred fifty-four".