1407221173 has 2 divisors, whose sum is σ = 1407221174. Its totient is φ = 1407221172.

The previous prime is 1407221159. The next prime is 1407221191. The reversal of 1407221173 is 3711227041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1106094564 + 301126609 = 33258^2 + 17353^2 .

It is a cyclic number.

It is not a de Polignac number, because 1407221173 - 2⁵ = 1407221141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1407221873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 703610586 + 703610587.

It is an arithmetic number, because the mean of its divisors is an integer number (703610587).

Almost surely, 2^1407221173 is an apocalyptic number.

It is an amenable number.

1407221173 is a deficient number, since it is larger than the sum of its proper divisors (1).

1407221173 is an equidigital number, since it uses as much as digits as its factorization.

1407221173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 1407221173 is about 37512.9467384262. The cubic root of 1407221173 is about 1120.6090365817.

It can be divided in two parts, 14072 and 21173, that added together give a triangular number (35245 = T₂₆₅).

The spelling of 1407221173 in words is "one billion, four hundred seven million, two hundred twenty-one thousand, one hundred seventy-three".