1145401051 has 16 divisors (see below), whose sum is σ = 1217212416. Its totient is φ = 1076040000.

The previous prime is 1145401021. The next prime is 1145401057. The reversal of 1145401051 is 1501045411.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1145401051 - 2⁷ = 1145400923 is a prime.

It is a super-3 number, since 3×1145401051³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145401057) 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, 266046 + ... + 270316.

It is an arithmetic number, because the mean of its divisors is an integer number (76075776).

Almost surely, 2^1145401051 is an apocalyptic number.

1145401051 is a deficient number, since it is larger than the sum of its proper divisors (71811365).

1145401051 is a wasteful number, since it uses less digits than its factorization.

1145401051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4554.

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 1145401051 is about 33843.7741837402. The cubic root of 1145401051 is about 1046.2910870777.

Adding to 1145401051 its reverse (1501045411), we get a palindrome (2646446462).

The spelling of 1145401051 in words is "one billion, one hundred forty-five million, four hundred one thousand, fifty-one".