1541321145 has 96 divisors (see below), whose sum is σ = 3401798400. Its totient is φ = 627927552.

The previous prime is 1541321141. The next prime is 1541321191. The reversal of 1541321145 is 5411231451.

1541321145 is a `hidden beast` number, since 1 + 541 + 3 + 2 + 114 + 5 = 666.

It is not a de Polignac number, because 1541321145 - 2² = 1541321141 is a prime.

It is a super-2 number, since 2×1541321145² = 4751341744048222050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1541321141) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 112266 + ... + 125244.

It is an arithmetic number, because the mean of its divisors is an integer number (35435400).

Almost surely, 2^1541321145 is an apocalyptic number.

1541321145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1541321145 is an abundant number, since it is smaller than the sum of its proper divisors (1860477255).

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

1541321145 is a wasteful number, since it uses less digits than its factorization.

1541321145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13039 (or 13036 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 1541321145 is about 39259.6630780245. The cubic root of 1541321145 is about 1155.1304850612.

Adding to 1541321145 its reverse (5411231451), we get a palindrome (6952552596).

The spelling of 1541321145 in words is "one billion, five hundred forty-one million, three hundred twenty-one thousand, one hundred forty-five".