1190385542 has 4 divisors (see below), whose sum is σ = 1785578316. Its totient is φ = 595192770.

The previous prime is 1190385527. The next prime is 1190385551. The reversal of 1190385542 is 2455830911.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2455830911 = 23 ⋅106775257.

It is a junction number, because it is equal to n+sod(n) for n = 1190385496 and 1190385505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 297596384 + ... + 297596387.

It is an arithmetic number, because the mean of its divisors is an integer number (446394579).

Almost surely, 2^1190385542 is an apocalyptic number.

1190385542 is a deficient number, since it is larger than the sum of its proper divisors (595192774).

1190385542 is an equidigital number, since it uses as much as digits as its factorization.

1190385542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595192773.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 1190385542 is about 34501.9643208905. The cubic root of 1190385542 is about 1059.8129318631.

The spelling of 1190385542 in words is "one billion, one hundred ninety million, three hundred eighty-five thousand, five hundred forty-two".