1357429 has 2 divisors, whose sum is σ = 1357430. Its totient is φ = 1357428.

The previous prime is 1357427. The next prime is 1357453. The reversal of 1357429 is 9247531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1199025 + 158404 = 1095^2 + 398^2 .

It is a cyclic number.

It is not a de Polignac number, because 1357429 - 2¹ = 1357427 is a prime.

It is a super-2 number, since 2×1357429² = 3685226980082, which contains 22 as substring.

Together with 1357427, it forms a pair of twin primes.

It is a d-powerful number, because it can be written as 1 + 3⁷ + 5³ + 7⁷ + 4 + 2⁷ + 9⁶ .

1357429 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1357429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1357423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 678714 + 678715.

It is an arithmetic number, because the mean of its divisors is an integer number (678715).

2^1357429 is an apocalyptic number.

It is an amenable number.

1357429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1357429 is an equidigital number, since it uses as much as digits as its factorization.

1357429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 31.

The square root of 1357429 is about 1165.0875503583. The cubic root of 1357429 is about 110.7233051073.

The spelling of 1357429 in words is "one million, three hundred fifty-seven thousand, four hundred twenty-nine".