651412 has 6 divisors (see below), whose sum is σ = 1139978. Its totient is φ = 325704.

The previous prime is 651401. The next prime is 651437. The reversal of 651412 is 214156.

It can be written as a sum of positive squares in only one way, i.e., 454276 + 197136 = 674^2 + 444^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 651412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81423 + ... + 81430.

2⁶⁵¹⁴¹² is an apocalyptic number.

It is an amenable number.

651412 is a deficient number, since it is larger than the sum of its proper divisors (488566).

651412 is a wasteful number, since it uses less digits than its factorization.

651412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162857 (or 162855 counting only the distinct ones).

The product of its digits is 240, while the sum is 19.

The square root of 651412 is about 807.1009850075. The cubic root of 651412 is about 86.6865897655.

Adding to 651412 its reverse (214156), we get a palindrome (865568).

The spelling of 651412 in words is "six hundred fifty-one thousand, four hundred twelve".