1472739109 has 2 divisors, whose sum is σ = 1472739110. Its totient is φ = 1472739108.

The previous prime is 1472739097. The next prime is 1472739133. The reversal of 1472739109 is 9019372741.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1448944225 + 23794884 = 38065^2 + 4878^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1472739109 is a prime.

It is a super-2 number, since 2×1472739109² = 4337920966356227762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1472739209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 736369554 + 736369555.

It is an arithmetic number, because the mean of its divisors is an integer number (736369555).

Almost surely, 2^1472739109 is an apocalyptic number.

It is an amenable number.

1472739109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1472739109 is an equidigital number, since it uses as much as digits as its factorization.

1472739109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 1472739109 is about 38376.2831577004. The cubic root of 1472739109 is about 1137.7371520834.

The spelling of 1472739109 in words is "one billion, four hundred seventy-two million, seven hundred thirty-nine thousand, one hundred nine".