1231059541 has 16 divisors (see below), whose sum is σ = 1296167040. Its totient is φ = 1167566400.

The previous prime is 1231059527. The next prime is 1231059547. The reversal of 1231059541 is 1459501321.

It is a cyclic number.

It is not a de Polignac number, because 1231059541 - 2⁵ = 1231059509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231059547) 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, 945591 + ... + 946891.

It is an arithmetic number, because the mean of its divisors is an integer number (81010440).

Almost surely, 2^1231059541 is an apocalyptic number.

It is an amenable number.

1231059541 is a deficient number, since it is larger than the sum of its proper divisors (65107499).

1231059541 is a wasteful number, since it uses less digits than its factorization.

1231059541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1884.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 1231059541 is about 35086.4580857059. The cubic root of 1231059541 is about 1071.7488334144.

The spelling of 1231059541 in words is "one billion, two hundred thirty-one million, fifty-nine thousand, five hundred forty-one".