1123057545 has 16 divisors (see below), whose sum is σ = 1830796992. Its totient is φ = 587662400.

The previous prime is 1123057541. The next prime is 1123057549. The reversal of 1123057545 is 5457503211.

It is an interprime number because it is at equal distance from previous prime (1123057541) and next prime (1123057549).

It is not a de Polignac number, because 1123057545 - 2² = 1123057541 is a prime.

It is a super-2 number, since 2×1123057545² = 2522516498762854050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1123057541) 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, 705531 + ... + 707120.

It is an arithmetic number, because the mean of its divisors is an integer number (114424812).

Almost surely, 2^1123057545 is an apocalyptic number.

1123057545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1123057545 is a deficient number, since it is larger than the sum of its proper divisors (707739447).

1123057545 is a wasteful number, since it uses less digits than its factorization.

1123057545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1412712.

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 1123057545 is about 33512.0507429790. The cubic root of 1123057545 is about 1039.4429786495.

The spelling of 1123057545 in words is "one billion, one hundred twenty-three million, fifty-seven thousand, five hundred forty-five".