1357534 has 4 divisors (see below), whose sum is σ = 2036304. Its totient is φ = 678766.

The previous prime is 1357513. The next prime is 1357537. The reversal of 1357534 is 4357531.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1357534² = 3685797122312, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1357537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339382 + ... + 339385.

It is an arithmetic number, because the mean of its divisors is an integer number (509076).

2^1357534 is an apocalyptic number.

1357534 is a deficient number, since it is larger than the sum of its proper divisors (678770).

1357534 is an equidigital number, since it uses as much as digits as its factorization.

1357534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678769.

The product of its digits is 6300, while the sum is 28.

The square root of 1357534 is about 1165.1326104783. The cubic root of 1357534 is about 110.7261599276.

It can be divided in two parts, 1357 and 534, that added together give a triangular number (1891 = T₆₁).

The spelling of 1357534 in words is "one million, three hundred fifty-seven thousand, five hundred thirty-four".