1611057412 has 6 divisors (see below), whose sum is σ = 2819350478. Its totient is φ = 805528704.

The previous prime is 1611057359. The next prime is 1611057419. The reversal of 1611057412 is 2147501161.

It can be written as a sum of positive squares in only one way, i.e., 1247926276 + 363131136 = 35326^2 + 19056^2 .

It is not an unprimeable number, because it can be changed into a prime (1611057419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201382173 + ... + 201382180.

Almost surely, 2^1611057412 is an apocalyptic number.

It is an amenable number.

1611057412 is a deficient number, since it is larger than the sum of its proper divisors (1208293066).

1611057412 is a wasteful number, since it uses less digits than its factorization.

1611057412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402764357 (or 402764355 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 1611057412 is about 40137.9796701329. The cubic root of 1611057412 is about 1172.2952513213.

Adding to 1611057412 its reverse (2147501161), we get a palindrome (3758558573).

The spelling of 1611057412 in words is "one billion, six hundred eleven million, fifty-seven thousand, four hundred twelve".