40154029 has 2 divisors, whose sum is σ = 40154030. Its totient is φ = 40154028.

The previous prime is 40154003. The next prime is 40154033. The reversal of 40154029 is 92045104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33953929 + 6200100 = 5827^2 + 2490^2 .

It is a cyclic number.

It is not a de Polignac number, because 40154029 - 2⁷ = 40153901 is a prime.

It is a super-2 number, since 2×40154029² = 3224692089865682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40153994 and 40154012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40154039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20077014 + 20077015.

It is an arithmetic number, because the mean of its divisors is an integer number (20077015).

Almost surely, 2^40154029 is an apocalyptic number.

It is an amenable number.

40154029 is a deficient number, since it is larger than the sum of its proper divisors (1).

40154029 is an equidigital number, since it uses as much as digits as its factorization.

40154029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 40154029 is about 6336.7206818669. The cubic root of 40154029 is about 342.4336035536.

The spelling of 40154029 in words is "forty million, one hundred fifty-four thousand, twenty-nine".