1954084729 has 2 divisors, whose sum is σ = 1954084730. Its totient is φ = 1954084728.

The previous prime is 1954084637. The next prime is 1954084763. The reversal of 1954084729 is 9274804591.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1954082025 + 2704 = 44205^2 + 52^2 .

It is a cyclic number.

It is not a de Polignac number, because 1954084729 - 2¹¹ = 1954082681 is a prime.

It is a super-2 number, since 2×1954084729² = 7636894256222006882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1954084229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 977042364 + 977042365.

It is an arithmetic number, because the mean of its divisors is an integer number (977042365).

Almost surely, 2^1954084729 is an apocalyptic number.

It is an amenable number.

1954084729 is a deficient number, since it is larger than the sum of its proper divisors (1).

1954084729 is an equidigital number, since it uses as much as digits as its factorization.

1954084729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 49.

The square root of 1954084729 is about 44205.0305847649. The cubic root of 1954084729 is about 1250.2047086603.

The spelling of 1954084729 in words is "one billion, nine hundred fifty-four million, eighty-four thousand, seven hundred twenty-nine".